[sdiy] ot: audiophile cones was, Oh I wish I had never said that...

[Rob]

Hrm.. I would believe that it would act more as a resistor so that the low
frequency movement and vibration of the enclosure would be unable to be
transferred to the surface it was resting upon due to lack of coupling area.
Mechanical decoupling of sorts..

Personally, I always thought that putting the speakers on a layer of
closed-cell foam is by far the BEST way to stop transfer of vibrations. $5
worth of closed-cell weatherseal foam is prolly enough to do about 4 average
speakers.. Far cheaper than the 20 bux for the little decouplers. Put a
couple of strips of it under the speakers and it should work fine.

And, yes, in theory, it will tighten up the bass by stopping delayed
vibrations from being heard from the surface it is placed upon.

I think that more important thing is to worry about the distance away from
the wall.. I have done some experiments and this will *greatly* affect the
amount of reflected bass, thereby affecting the tightness. The decouplers?
Hrm.. I really guess those depends on a lot of other issues as to whether or
not you will see a distance.

BTW, certain fractions of wavelengths can cause problems too! Don't let the
fact that something is a quarter or half wavelength lull you into thinking
there is no effect. Certain fractions of wavelength can cause quite a bit of
trouble at times. I have been taught this the hard way many times.

Rob

----- Original Message -----
From: "Nick Zuccaro" <nmz77 at yahoo.com>
To: <synth-diy at node12b53.a2000.nl>
Sent: Saturday, January 27, 2001 5:17 PM
Subject: [sdiy] ot: audiophile cones was, Oh I wish I had never said that...


> > > [and that other day in the stereo shop "mate this ones sooo
> > goood that it
> > > isnt measured in watts, its measured in dB..."] etc etc..
> > > please never suggest I'm an audiophile, I havent had my
> > guillability implants put in yet..
> >
>
> anyone here with a mechanical background want to give an
> explanation of speaker spikes and the cone-shaped feet that
> audiophiles use?? i've heard from some that it's BS and some
> that there's some mechanical principle behind it, like a
> 'mechanical ground' analog of an electrical ground... the last
> time i was in a hi-fi shop the guy working there told me that
> sonically they 'tighten up' the sound and you get better bass
> response etc. i've also heard others say that it eliminates
> resonances within an enclosure or on a circuit board, but isn't
> this such a tiny fraction of a wavelengh to do anything? a 60Hz
> bass fundamental is about 3k miles long, so spikes on your 19"
> wide amp isn't going to do anything about bass resonances...just
> wondering if anyone knows for sure... :]
>
> l8r..Nick
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Auctions - Buy the things you want at great prices.
> http://auctions.yahoo.com/